Mt. Cuba Observatory
Look through real telescopes on a Family Night — Delaware's public observatory, by reservation, for kids 8 and up.
1610 Hillside Mill Rd, Wilmington, DE 19807
Hours
By appointment only
Show the week Hide the week
| Fri | By appointment only |
|---|---|
| Sat | By appointment only |
| Sun | By appointment only |
| Mon | By appointment only |
| Tue | By appointment only |
| Wed | By appointment only |
| Thu | By appointment only |
Last checked 2026-10-19
- Cost
- $10 adult · $5 child
- Best for
- Ages 8+ (the observatory's minimum age)
- Indoor / outdoor
- Indoor
- Typical visit
- 1.5–2 hours (evening program)
The Quick Version
- • A public astronomical observatory near Greenville (not the same place as Mt. Cuba Center's gardens) that runs evening sky programs — it's not a daytime drop-in; you reserve a program.
- • Kids must be 8 or older: the observatory doesn't accept younger children, and on Family Nights kids come with a parent or guardian.
- • The family pick is Family Night (Friday, 8 PM): telescope viewing if the sky's clear, plus a planetarium show. Public Nights (Mondays, 8 PM) are themed talks; Children's Programs run some Saturdays at 7 PM.
- • A suggested donation of $10 adults, $5 kids; they don't take cards or online payment, so bring cash. About 15 minutes from Wilmington.
Best Ages
Ages 8+ (the observatory's minimum age)
Plan For
1.5–2 hours (evening program)
Adults
$10
Kids
$5
What to Expect
Mt. Cuba Observatory is Delaware's public astronomical observatory, tucked in the hills near Greenville — and it's worth knowing it's a different place from Mt. Cuba Center, the botanical garden. The observatory isn't a daytime drop-in; you register for an evening sky program.
For families the anchor is Family Night (Friday evenings): if the sky is clear you look through the telescopes at the moon, planets, and stars, and there's a planetarium show that runs whether or not it's cloudy. Public Nights (Monday evenings) are themed lectures that skew older kids and adults, and Children's Programs run some Saturday evenings at 7 PM. Kids must be 8 or older for all of it.
It's inexpensive (a suggested donation of $10 adults, $5 kids, cash only) and genuinely memorable for a space-curious kid — but plan around it: programs are by reservation and fill up, the telescope part depends on clear skies, and it's a later evening (around 8 PM) outing, so it suits kids who can stay up. About 15 minutes from Wilmington. Reserve ahead at mountcuba.org.
Who It's Best For
The observatory doesn't accept children under 8, and its presentations are written for older kids; on Family Nights, children come with a parent or guardian. For a space-curious 8-to-12-year-old it's a great evening, but it's a later (8 PM) program, so it suits kids who can stay up.
Highlights
Family Night
Ages 8+The family anchor — telescope viewing (clear skies) plus a planetarium show, on Friday evenings.
Looking through the telescopes
Ages 8+The moon, planets, and stars up close on a clear night — a real thrill for a space-loving kid.
The planetarium show
Ages 8+Runs rain or shine, so a cloudy night isn't a wasted trip.
Saturday Children's Programs
Ages 8+Saturday-evening (7 PM) programs on topics like the constellations and the International Space Station, written for older kids.
What to Skip with Little Ones
- • Bringing kids under 8 — the observatory doesn't admit them.
- • Showing up without a reservation — it's program-only.
- • Counting on telescopes on a cloudy night — the planetarium runs, but the scopes need clear skies.
Logistics
Admission
Adults
$10
Kids
$5
Under
Under 8 not admitted
Not a daytime drop-in — you reserve a specific program (Family Night, Public Night, or a Children's Program) through the observatory's contact form, by phone (302-654-6407), or by email. The observatory asks a donation of $10 for adults and $5 for children and doesn't take cards or online payment. Telescope viewing depends on clear skies (the planetarium show happens either way). Minimum age 8.
Getting There
Parking
On-site parking at the observatory.
It's an evening program — arrive a few minutes early, and dress warm for outdoor telescope viewing.
Entrance
1610 Hillside Mill Road, Wilmington (Greenville area). Arrive no more than 15 minutes before your program starts.
Parent Logistics
It's an evening program with some walking and stairs up to the dome — a carrier is easier than a stroller, and there's planetarium seating.
Restrooms on site.
Not confirmed — plan ahead.
Not applicable — it's an evening program; dress for the weather, since telescope viewing is outdoors.
Food & Snacks
No food on-site. No food on site.
Snack strategy: It's an evening program — feed the kids dinner first.
Pro Tips
- ✓ Book a Friday Family Night — it's the family program (telescopes + planetarium) for kids 8 and up.
- ✓ Bring cash for the suggested donation; they don't take cards or online payment.
- ✓ It's an 8 PM program — dress warm for outdoor viewing, and arrive no more than 15 minutes early.
- ✓ Don't confuse it with Mt. Cuba Center (the gardens) — different place, different address.
When to Go
Best Time to Visit
Family Nights (Friday, 8 PM) are the family anchor. Reserve ahead, and hope for a clear sky for the telescopes (the planetarium runs either way).
Seasonal Notes
Program-based, not daily admission. Family Nights (Fri, 8 PM) mix telescope viewing and a planetarium show; Public Nights (Mon, 8 PM) are themed talks; Children's Programs run some Saturdays at 7 PM. Telescope viewing is weather-dependent; the planetarium show runs regardless. Reserve in advance through the observatory's contact form, by phone, or by email.
Rainy Day?
The planetarium show runs regardless of weather, so a cloudy night still works — only the telescopes need clear skies.
While You're in the Area
In the Greenville/Hockessin area — pair (on a separate day) with Mt. Cuba Center's gardens or Woodside Farm Creamery.
Upcoming Events
Family Night at Mt. Cuba Astronomical Observatory
Fri, Nov 13 at 8:00 PM
Families will enjoy telescope viewing outdoors, weather permitting, followed by a planetarium show indoors. The event is designed for children aged 8 and up, with adult supervision required. Participants should dress for the weather and arrive no more than 15 minutes early.
More infoKnow when something good is on near Mt. Cuba Observatory
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